Test O: Left Rear Window Inoperative From Left Rear Control Switch

Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Using NGS tester, perform Rear Electronic Module (REM) self-test. If any REM DTCs are retrieved, see REAR ELECTRONIC MODULE DTC INDEX table under SELF-DIAGNOSTIC SYSTEM. If no REM DTCs are retrieved, go to next step.
Turn ignition switch to LOCK position. Turn ignition switch to RUN position. Using NGS tester, monitor REM PIDS LRUP_SW and LRDN_SW while operating left rear window from left rear control switch in UP and DOWN positions. If PIDs agree with left rear control switch positions, replace REM. If PIDs do not agree with left rear control switch positions, go to next step.
Turn ignition switch to LOCK position. Remove left rear control switch. Perform DRIVER'S CONTROL SWITCH test under COMPONENT TESTS. If switch is okay, go to next step. If switch is faulty, replace left rear control switch.
Turn ignition switch to RUN position. Measure voltage between left rear control switch 6-pin harness connector C701 terminal No. 3 (Yellow/Blue wire) and ground. See Figure . If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair open or short to ground in Yellow/Blue wire and retest system operation.
Turn ignition switch to LOCK position. Disconnect REM 26-pin harness connector C420c. Measure resistance in White/Blue wire between right left control switch 6-pin harness connector C701 terminal No. 1 and REM 26-pin harness connector C420c terminal No. 24. See Figure . Measure resistance in Gray/Violet wire between left rear control switch 6-pin harness connector C701 terminal No. 2 and REM 26-pin harness connector C420c terminal No. 22. If resistances are less than 5 ohms, replace REM. If any resistance is greater than 5 ohms, repair open in appropriate wire(s) and retest system operation.